www.pudn.com > 用于显示音效的柱状器.zip > HistogramCtrl.h

// HistogramCtrl.h : header file 
// 
 
#ifndef __HISTOGRAMCTRL_H__ 
#define __HISTOGRAMCTRL_H__ 
 
///////////////////////////////////////////////////////////////////////////// 
// CHistogramCtrl window 
 
class CHistogramCtrl : public CWnd 
{ 
// Construction 
public: 
	CHistogramCtrl(); 
  UINT m_nVertical; 
 
// Attributes 
public: 
	UINT SetPos(UINT nPos); 
	void SetRange(UINT nLower, UINT nUpper); 
	void InvalidateCtrl(); 
	void DrawSpike(); 
 
	// Operations 
public: 
	void StepIt(); 
 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CHistogramCtrl) 
	public: 
	virtual BOOL Create(DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext = NULL); 
	//}}AFX_VIRTUAL 
 
// Implementation 
public: 
	virtual ~CHistogramCtrl(); 
 
	// Generated message map functions 
protected: 
	//{{AFX_MSG(CHistogramCtrl) 
	afx_msg void OnPaint(); 
	//}}AFX_MSG 
	DECLARE_MESSAGE_MAP() 
 
	UINT     m_nLower;		// lower bounds 
	UINT     m_nUpper;		// upper bounds 
	UINT     m_nPos;		// current position within bounds 
 
	CDC      m_MemDC; 
	CBitmap  m_Bitmap; 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
#endif